-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
stmgr.go
645 lines (541 loc) · 16.8 KB
/
stmgr.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
package stmgr
import (
"context"
"fmt"
"sync"
"github.com/filecoin-project/go-address"
amt "github.com/filecoin-project/go-amt-ipld"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/state"
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/chain/vm"
cbg "github.com/whyrusleeping/cbor-gen"
"golang.org/x/xerrors"
bls "github.com/filecoin-project/filecoin-ffi"
"github.com/ipfs/go-cid"
hamt "github.com/ipfs/go-hamt-ipld"
blockstore "github.com/ipfs/go-ipfs-blockstore"
logging "github.com/ipfs/go-log/v2"
"go.opencensus.io/trace"
)
var log = logging.Logger("statemgr")
type StateManager struct {
cs *store.ChainStore
stCache map[string][]cid.Cid
compWait map[string]chan struct{}
stlk sync.Mutex
newVM func(cid.Cid, uint64, vm.Rand, address.Address, blockstore.Blockstore, *types.VMSyscalls) (*vm.VM, error)
}
func NewStateManager(cs *store.ChainStore) *StateManager {
return &StateManager{
newVM: vm.NewVM,
cs: cs,
stCache: make(map[string][]cid.Cid),
compWait: make(map[string]chan struct{}),
}
}
func cidsToKey(cids []cid.Cid) string {
var out string
for _, c := range cids {
out += c.KeyString()
}
return out
}
func (sm *StateManager) TipSetState(ctx context.Context, ts *types.TipSet) (st cid.Cid, rec cid.Cid, err error) {
ctx, span := trace.StartSpan(ctx, "tipSetState")
defer span.End()
if span.IsRecordingEvents() {
span.AddAttributes(trace.StringAttribute("tipset", fmt.Sprint(ts.Cids())))
}
ck := cidsToKey(ts.Cids())
sm.stlk.Lock()
cw, cwok := sm.compWait[ck]
if cwok {
sm.stlk.Unlock()
span.AddAttributes(trace.BoolAttribute("waited", true))
select {
case <-cw:
sm.stlk.Lock()
case <-ctx.Done():
return cid.Undef, cid.Undef, ctx.Err()
}
}
cached, ok := sm.stCache[ck]
if ok {
sm.stlk.Unlock()
span.AddAttributes(trace.BoolAttribute("cache", true))
return cached[0], cached[1], nil
}
ch := make(chan struct{})
sm.compWait[ck] = ch
defer func() {
sm.stlk.Lock()
delete(sm.compWait, ck)
if st != cid.Undef {
sm.stCache[ck] = []cid.Cid{st, rec}
}
sm.stlk.Unlock()
close(ch)
}()
sm.stlk.Unlock()
if ts.Height() == 0 {
// NB: This is here because the process that executes blocks requires that the
// block miner reference a valid miner in the state tree. Unless we create some
// magical genesis miner, this won't work properly, so we short circuit here
// This avoids the question of 'who gets paid the genesis block reward'
return ts.Blocks()[0].ParentStateRoot, ts.Blocks()[0].ParentMessageReceipts, nil
}
st, rec, err = sm.computeTipSetState(ctx, ts.Blocks(), nil)
if err != nil {
return cid.Undef, cid.Undef, err
}
return st, rec, nil
}
func (sm *StateManager) computeTipSetState(ctx context.Context, blks []*types.BlockHeader, cb func(cid.Cid, *types.Message, *vm.ApplyRet) error) (cid.Cid, cid.Cid, error) {
ctx, span := trace.StartSpan(ctx, "computeTipSetState")
defer span.End()
for i := 0; i < len(blks); i++ {
for j := i + 1; j < len(blks); j++ {
if blks[i].Miner == blks[j].Miner {
return cid.Undef, cid.Undef,
xerrors.Errorf("duplicate miner in a tipset (%s %s)",
blks[i].Miner, blks[j].Miner)
}
}
}
pstate := blks[0].ParentStateRoot
if len(blks[0].Parents) > 0 { // don't support forks on genesis
parent, err := sm.cs.GetBlock(blks[0].Parents[0])
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("getting parent block: %w", err)
}
pstate, err = sm.handleStateForks(ctx, blks[0].ParentStateRoot, blks[0].Height, parent.Height)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("error handling state forks: %w", err)
}
}
cids := make([]cid.Cid, len(blks))
for i, v := range blks {
cids[i] = v.Cid()
}
r := store.NewChainRand(sm.cs, cids, blks[0].Height)
vmi, err := sm.newVM(pstate, blks[0].Height, r, address.Undef, sm.cs.Blockstore(), sm.cs.VMSys())
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("instantiating VM failed: %w", err)
}
netact, err := vmi.StateTree().GetActor(actors.NetworkAddress)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to get network actor: %w", err)
}
reward := vm.MiningReward(netact.Balance)
for tsi, b := range blks {
netact, err = vmi.StateTree().GetActor(actors.NetworkAddress)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to get network actor: %w", err)
}
vmi.SetBlockMiner(b.Miner)
owner, err := GetMinerOwner(ctx, sm, pstate, b.Miner)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to get owner for miner %s: %w", b.Miner, err)
}
act, err := vmi.StateTree().GetActor(owner)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to get miner owner actor")
}
if err := vm.Transfer(netact, act, reward); err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to deduct funds from network actor: %w", err)
}
// all block miners created a valid post, go update the actor state
postSubmitMsg := &types.Message{
From: actors.NetworkAddress,
Nonce: netact.Nonce,
To: b.Miner,
Method: actors.MAMethods.SubmitElectionPoSt,
GasPrice: types.NewInt(0),
GasLimit: types.NewInt(10000000000),
Value: types.NewInt(0),
}
ret, err := vmi.ApplyMessage(ctx, postSubmitMsg)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("submit election post message for block %s (miner %s) invocation failed: %w", b.Cid(), b.Miner, err)
}
if ret.ExitCode != 0 {
return cid.Undef, cid.Undef, xerrors.Errorf("submit election post invocation returned nonzero exit code: %d (err = %s, block = %s, miner = %s, tsi = %d)", ret.ExitCode, ret.ActorErr, b.Cid(), b.Miner, tsi)
}
}
// TODO: can't use method from chainstore because it doesnt let us know who the block miners were
applied := make(map[address.Address]uint64)
balances := make(map[address.Address]types.BigInt)
preloadAddr := func(a address.Address) error {
if _, ok := applied[a]; !ok {
act, err := vmi.StateTree().GetActor(a)
if err != nil {
return err
}
applied[a] = act.Nonce
balances[a] = act.Balance
}
return nil
}
var receipts []cbg.CBORMarshaler
for _, b := range blks {
vmi.SetBlockMiner(b.Miner)
bms, sms, err := sm.cs.MessagesForBlock(b)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to get messages for block: %w", err)
}
cmsgs := make([]store.ChainMsg, 0, len(bms)+len(sms))
for _, m := range bms {
cmsgs = append(cmsgs, m)
}
for _, sm := range sms {
cmsgs = append(cmsgs, sm)
}
for _, cm := range cmsgs {
m := cm.VMMessage()
if err := preloadAddr(m.From); err != nil {
return cid.Undef, cid.Undef, err
}
if applied[m.From] != m.Nonce {
continue
}
applied[m.From]++
if balances[m.From].LessThan(m.RequiredFunds()) {
continue
}
balances[m.From] = types.BigSub(balances[m.From], m.RequiredFunds())
r, err := vmi.ApplyMessage(ctx, m)
if err != nil {
return cid.Undef, cid.Undef, err
}
receipts = append(receipts, &r.MessageReceipt)
if cb != nil {
if err := cb(cm.Cid(), m, r); err != nil {
return cid.Undef, cid.Undef, err
}
}
}
}
// TODO: this nonce-getting is a tiny bit ugly
ca, err := vmi.StateTree().GetActor(actors.CronAddress)
if err != nil {
return cid.Undef, cid.Undef, err
}
ret, err := vmi.ApplyMessage(ctx, &types.Message{
To: actors.CronAddress,
From: actors.CronAddress,
Nonce: ca.Nonce,
Value: types.NewInt(0),
GasPrice: types.NewInt(0),
GasLimit: types.NewInt(1 << 30), // Make super sure this is never too little
Method: actors.CAMethods.EpochTick,
Params: nil,
})
if err != nil {
return cid.Undef, cid.Undef, err
}
if ret.ExitCode != 0 {
return cid.Undef, cid.Undef, xerrors.Errorf("CheckProofSubmissions exit was non-zero: %d", ret.ExitCode)
}
bs := amt.WrapBlockstore(sm.cs.Blockstore())
rectroot, err := amt.FromArray(bs, receipts)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("failed to build receipts amt: %w", err)
}
st, err := vmi.Flush(ctx)
if err != nil {
return cid.Undef, cid.Undef, xerrors.Errorf("vm flush failed: %w", err)
}
return st, rectroot, nil
}
func (sm *StateManager) GetActor(addr address.Address, ts *types.TipSet) (*types.Actor, error) {
if ts == nil {
ts = sm.cs.GetHeaviestTipSet()
}
stcid := ts.ParentState()
cst := hamt.CSTFromBstore(sm.cs.Blockstore())
state, err := state.LoadStateTree(cst, stcid)
if err != nil {
return nil, xerrors.Errorf("load state tree: %w", err)
}
return state.GetActor(addr)
}
func (sm *StateManager) GetBalance(addr address.Address, ts *types.TipSet) (types.BigInt, error) {
act, err := sm.GetActor(addr, ts)
if err != nil {
if xerrors.Is(err, types.ErrActorNotFound) {
return types.NewInt(0), nil
}
return types.EmptyInt, xerrors.Errorf("get actor: %w", err)
}
return act.Balance, nil
}
func (sm *StateManager) ChainStore() *store.ChainStore {
return sm.cs
}
func (sm *StateManager) LoadActorState(ctx context.Context, a address.Address, out interface{}, ts *types.TipSet) (*types.Actor, error) {
act, err := sm.GetActor(a, ts)
if err != nil {
return nil, err
}
cst := hamt.CSTFromBstore(sm.cs.Blockstore())
if err := cst.Get(ctx, act.Head, out); err != nil {
return nil, err
}
return act, nil
}
func (sm *StateManager) ResolveToKeyAddress(ctx context.Context, addr address.Address, ts *types.TipSet) (address.Address, error) {
switch addr.Protocol() {
case address.BLS, address.SECP256K1:
return addr, nil
case address.Actor:
return address.Undef, xerrors.New("cannot resolve actor address to key address")
default:
}
if ts == nil {
ts = sm.cs.GetHeaviestTipSet()
}
st, _, err := sm.TipSetState(ctx, ts)
if err != nil {
return address.Undef, xerrors.Errorf("resolve address failed to get tipset state: %w", err)
}
cst := hamt.CSTFromBstore(sm.cs.Blockstore())
tree, err := state.LoadStateTree(cst, st)
if err != nil {
return address.Undef, xerrors.Errorf("failed to load state tree")
}
return vm.ResolveToKeyAddr(tree, cst, addr)
}
func (sm *StateManager) GetBlsPublicKey(ctx context.Context, addr address.Address, ts *types.TipSet) (pubk bls.PublicKey, err error) {
kaddr, err := sm.ResolveToKeyAddress(ctx, addr, ts)
if err != nil {
return pubk, xerrors.Errorf("failed to resolve address to key address: %w", err)
}
if kaddr.Protocol() != address.BLS {
return pubk, xerrors.Errorf("address must be BLS address to load bls public key")
}
copy(pubk[:], kaddr.Payload())
return pubk, nil
}
func (sm *StateManager) GetReceipt(ctx context.Context, msg cid.Cid, ts *types.TipSet) (*types.MessageReceipt, error) {
m, err := sm.cs.GetCMessage(msg)
if err != nil {
return nil, fmt.Errorf("failed to load message: %w", err)
}
r, err := sm.tipsetExecutedMessage(ts, msg, m.VMMessage())
if err != nil {
return nil, err
}
if r != nil {
return r, nil
}
_, r, err = sm.searchBackForMsg(ctx, ts, m)
if err != nil {
return nil, fmt.Errorf("failed to look back through chain for message: %w", err)
}
return r, nil
}
func (sm *StateManager) WaitForMessage(ctx context.Context, mcid cid.Cid) (*types.TipSet, *types.MessageReceipt, error) {
ctx, cancel := context.WithCancel(ctx)
defer cancel()
msg, err := sm.cs.GetCMessage(mcid)
if err != nil {
return nil, nil, fmt.Errorf("failed to load message: %w", err)
}
tsub := sm.cs.SubHeadChanges(ctx)
head, ok := <-tsub
if !ok {
return nil, nil, fmt.Errorf("SubHeadChanges stream was invalid")
}
if len(head) != 1 {
return nil, nil, fmt.Errorf("SubHeadChanges first entry should have been one item")
}
if head[0].Type != store.HCCurrent {
return nil, nil, fmt.Errorf("expected current head on SHC stream (got %s)", head[0].Type)
}
r, err := sm.tipsetExecutedMessage(head[0].Val, mcid, msg.VMMessage())
if err != nil {
return nil, nil, err
}
if r != nil {
return head[0].Val, r, nil
}
var backTs *types.TipSet
var backRcp *types.MessageReceipt
backSearchWait := make(chan struct{})
go func() {
fts, r, err := sm.searchBackForMsg(ctx, head[0].Val, msg)
if err != nil {
log.Warnf("failed to look back through chain for message: %w", err)
return
}
backTs = fts
backRcp = r
close(backSearchWait)
}()
for {
select {
case notif, ok := <-tsub:
if !ok {
return nil, nil, ctx.Err()
}
for _, val := range notif {
switch val.Type {
case store.HCRevert:
continue
case store.HCApply:
r, err := sm.tipsetExecutedMessage(val.Val, mcid, msg.VMMessage())
if err != nil {
return nil, nil, err
}
if r != nil {
return val.Val, r, nil
}
}
}
case <-backSearchWait:
if backTs != nil {
return backTs, backRcp, nil
}
backSearchWait = nil
case <-ctx.Done():
return nil, nil, ctx.Err()
}
}
}
func (sm *StateManager) searchBackForMsg(ctx context.Context, from *types.TipSet, m store.ChainMsg) (*types.TipSet, *types.MessageReceipt, error) {
cur := from
for {
if cur.Height() == 0 {
// it ain't here!
return nil, nil, nil
}
select {
case <-ctx.Done():
return nil, nil, nil
default:
}
act, err := sm.GetActor(m.VMMessage().From, cur)
if err != nil {
return nil, nil, err
}
if act.Nonce < m.VMMessage().Nonce {
// nonce on chain is before message nonce we're looking for, its
// not going to be here
return nil, nil, nil
}
ts, err := sm.cs.LoadTipSet(cur.Parents())
if err != nil {
return nil, nil, fmt.Errorf("failed to load tipset during msg wait searchback: %w", err)
}
r, err := sm.tipsetExecutedMessage(ts, m.Cid(), m.VMMessage())
if err != nil {
return nil, nil, fmt.Errorf("checking for message execution during lookback: %w", err)
}
if r != nil {
return ts, r, nil
}
cur = ts
}
}
func (sm *StateManager) tipsetExecutedMessage(ts *types.TipSet, msg cid.Cid, vmm *types.Message) (*types.MessageReceipt, error) {
// The genesis block did not execute any messages
if ts.Height() == 0 {
return nil, nil
}
pts, err := sm.cs.LoadTipSet(ts.Parents())
if err != nil {
return nil, err
}
cm, err := sm.cs.MessagesForTipset(pts)
if err != nil {
return nil, err
}
for ii := range cm {
// iterate in reverse because we going backwards through the chain
i := len(cm) - ii - 1
m := cm[i]
if m.VMMessage().From == vmm.From { // cheaper to just check origin first
if m.VMMessage().Nonce == vmm.Nonce {
if m.Cid() == msg {
return sm.cs.GetParentReceipt(ts.Blocks()[0], i)
}
// this should be that message
return nil, xerrors.Errorf("found message with equal nonce as the one we are looking for (F:%s n %d, TS: %s n%d)",
msg, vmm.Nonce, m.Cid(), m.VMMessage().Nonce)
}
if m.VMMessage().Nonce < vmm.Nonce {
return nil, nil // don't bother looking further
}
}
}
return nil, nil
}
func (sm *StateManager) ListAllActors(ctx context.Context, ts *types.TipSet) ([]address.Address, error) {
if ts == nil {
ts = sm.cs.GetHeaviestTipSet()
}
st, _, err := sm.TipSetState(ctx, ts)
if err != nil {
return nil, err
}
cst := hamt.CSTFromBstore(sm.cs.Blockstore())
r, err := hamt.LoadNode(ctx, cst, st)
if err != nil {
return nil, err
}
var out []address.Address
err = r.ForEach(ctx, func(k string, val interface{}) error {
addr, err := address.NewFromBytes([]byte(k))
if err != nil {
return xerrors.Errorf("address in state tree was not valid: %w", err)
}
out = append(out, addr)
return nil
})
if err != nil {
return nil, err
}
return out, nil
}
func (sm *StateManager) MarketBalance(ctx context.Context, addr address.Address, ts *types.TipSet) (actors.StorageParticipantBalance, error) {
var state actors.StorageMarketState
if _, err := sm.LoadActorState(ctx, actors.StorageMarketAddress, &state, ts); err != nil {
return actors.StorageParticipantBalance{}, err
}
cst := hamt.CSTFromBstore(sm.cs.Blockstore())
b, _, err := actors.GetMarketBalances(ctx, cst, state.Balances, addr)
if err != nil {
return actors.StorageParticipantBalance{}, err
}
return b[0], nil
}
func (sm *StateManager) ValidateChain(ctx context.Context, ts *types.TipSet) error {
tschain := []*types.TipSet{ts}
for ts.Height() != 0 {
next, err := sm.cs.LoadTipSet(ts.Parents())
if err != nil {
return err
}
tschain = append(tschain, next)
ts = next
}
lastState := tschain[len(tschain)-1].ParentState()
for i := len(tschain) - 1; i >= 0; i-- {
cur := tschain[i]
log.Infof("computing state (height: %d, ts=%s)", cur.Height(), cur.Cids())
if cur.ParentState() != lastState {
return xerrors.Errorf("tipset chain had state mismatch at height %d", cur.Height())
}
st, _, err := sm.TipSetState(ctx, cur)
if err != nil {
return err
}
lastState = st
}
return nil
}
func (sm *StateManager) SetVMConstructor(nvm func(cid.Cid, uint64, vm.Rand, address.Address, blockstore.Blockstore, *types.VMSyscalls) (*vm.VM, error)) {
sm.newVM = nvm
}